语音合成(使用.net3.0中的System.Speech.Synthesis心得)

语音合成

1、使用语音合成

        SpeechSynthesizer synth = new SpeechSynthesizer();

 

            //获取本机上所安装的所有的Voice的名称

            string voicestring = "";

 

            foreach (InstalledVoice iv in synth.GetInstalledVoices())

            {

                voicestring += iv.VoiceInfo.Name + ",";

            }

 

            //根据Voice的name属性确定要使用的Voice

            synth.SelectVoice("VW Lily");         

            //根据文字内容合成语音

            synth.Speak(this.textBox1.Text);

            synth.Speak("中华人民共和国湖北省");

2、构建SSML

                       

            PromptBuilder myPrompt = new PromptBuilder();

 

            //Start the main speaking style

            PromptStyle mainStyle = new PromptStyle();

            mainStyle.Rate = PromptRate.Medium;

            mainStyle.Volume = PromptVolume.Loud;

            myPrompt.StartStyle(mainStyle);

 

            //Alert the listener

            myPrompt.AppendAudio(new Uri(

                "file://c:""windows""media""notify.wav"), "Attention!");   //AppendAudio 功能使 WAV 文件与输出结合，

                 //如果未找到 WAV 文件，可以使用一个等效文本文件，即第二个参数

            myPrompt.AppendText("Here are some important messages.");

 

            //Here's the first important message

            myPrompt.AppendTextWithPronunciation("WinFX", "wɪnɛfɛks"); //AppendTextWithPronunciation 功能允许您指定单词的正确发音

            myPrompt.AppendText("is a great platform.");

 

            //And the second one

            myPrompt.AppendTextWithHint("ASP", SayAs.SpellOut); // AppendTextWithHint 功能为缩写词作标记

            //SayAs枚举值举例： SayAs.NumberOrdinal SayAs.DayMonth SayAs.SpellOut SayAs.Telephone SayAs.Text SayAs.Time24等

            myPrompt.AppendText(

                "is an acronym for Active Server Pages. Whereas an ASP is a snake.");

 

            myPrompt.AppendBreak();

 

           //Let's emphasise how important these messages are

            PromptStyle interimStyle = new PromptStyle();

            interimStyle.Emphasis = PromptEmphasis.Strong;

            myPrompt.StartStyle(interimStyle);

            myPrompt.AppendText("Please remember these two things.");

            myPrompt.EndStyle();

 

            //Then we can revert to the main speaking style

            myPrompt.AppendBreak();

            myPrompt.AppendText("Thank you");

 

            myPrompt.EndStyle();

            //Now let's get the synthesizer to render this message

            SpeechSynthesizer synth = new SpeechSynthesizer();

            synth.SelectVoice("VW Lily");

            synth.SpeakAsync(myPrompt); //与Speak不同的异步方法 

3、将构建的SSML保存在SSML文件中

            using (StreamWriter promptWriter = new StreamWriter("c:""prompt.ssml"))

            {

                promptWriter.Write(myPrompt.ToXml());

            }

4、将构建的语音保存为一个WAV文件中

//若前面使用了SpeakAsync方法，则不能输出为WAV文件。

            //必须等到语音播完后才能输出           

            synth.SetOutputToWaveFile("c:""message.wav");

            synth.Speak(myPrompt);

            synth.SetOutputToNull();

5、根据SSML文件中保存的信息还原为语音

            SpeechSynthesizer synth = new SpeechSynthesizer();

            PromptBuilder savedPrompt = new PromptBuilder();

            savedPrompt.AppendSsml("c:""prompt.ssml");

            synth.SelectVoice("VW Lily");

            synth.Speak(savedPrompt);

 

6、通过语音进度事件高光显示正在阅读的文本位置

           SpeechSynthesizer synth = new SpeechSynthesizer();

 synth.SpeakProgress += new EventHandler<SpeakProgressEventArgs>(synth_SpeakProgress);

void synth_SpeakProgress(object sender, SpeakProgressEventArgs e)

        {

            this.textBox1.HideSelection = false;          

            this.textBox1.Select(e.CharacterPosition,e.CharacterCount );

        }

 本节源代码